CN208401003U - The high-efficiency heat conduction device of automobile power cell - Google Patents
The high-efficiency heat conduction device of automobile power cell Download PDFInfo
- Publication number
- CN208401003U CN208401003U CN201820866893.1U CN201820866893U CN208401003U CN 208401003 U CN208401003 U CN 208401003U CN 201820866893 U CN201820866893 U CN 201820866893U CN 208401003 U CN208401003 U CN 208401003U
- Authority
- CN
- China
- Prior art keywords
- heat
- liquid metal
- conducting
- battery pack
- conducting heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a kind of high-efficiency heat conduction devices of automobile power cell, including several pieces of liquid metal for conducting heat plates (1) and liquid metal for conducting heat pad (3)；Liquid metal for conducting heat plate (1) is arranged between adjacent two pieces of battery core monomers (4), and several blocks of liquid metal for conducting heat plates and several pieces of battery core monomers are successively spaced setting, forms battery pack；The bottom of battery pack is arranged in liquid metal for conducting heat pad, and several blocks of liquid metal for conducting heat plates absorb the heat of battery core monomer and are transmitted on liquid metal for conducting heat pad.The utility model can be by rapidly and efficiently thermally conductive to cooling position of heat caused by inside battery core monomer, avoid battery core bottom existing phenomena such as overheating, greatly reduce the heat inhomogeneities in battery pack, prolong the service life, that improves battery pack uses capacity, service efficiency and thermal safety.
Description
Technical field
The utility model relates to the efficient of a kind of power battery pack heat management device more particularly to a kind of automobile power cell
Heat-transfer device.
Background technique
For power battery in use all the time all along with the generation of heat, cell heat is the electrification in battery core
The heat that reaction generates is learned, not thorough currently for the electrochemical reaction research inside battery core, battery core fever is currently unevenly
The problem of being difficult to avoid that, and battery modules made of being stacked as multiple battery cores, it is increasingly complex to the management of its heat.Traditional battery core
One layer of Double-face gummed paper can be pasted in battery core two sides when stacking, on the one hand be that will keep apart between battery core, in order to avoid heat phase between battery core
Mutually transmitting, leads to thermal runaway.On the other hand, Double-face gummed paper will be regard as heat conductive pad, by the heat transfer between battery core to battery
Bottom, then taken away heat by cooling device, to guarantee that the heat of battery modules is in controllable state.But this layer of Double-face gummed paper
Heating conduction it is poor, a simple buffer action can only be played, artificial exacerbates the unevenness of temperature, to cause electricity
Core is locally easy overheat, seriously affects the service life and security performance of battery.
Battery pack internal temperature environment all has a great impact to the reliability of battery core, service life and performance, therefore using conjunction
The cooling technology of reason is very necessary.It is currently used to have the technologies such as air-cooled, liquid cooling, and liquid technology is with its heat exchange efficiency
High, the advantages that arrangement is more flexible, is widely used.The free-standing water cooling plate technique sum aggregate being such as commonly used
Accepted way of doing sth water cooling plate technique etc., but water-cooled plate is placed on battery pack bottom, and traditional heat conductive pad heat transfer efficiency is low, causes battery core bottom
Portion's temperature is low, and the high phenomenon of battery core upper temp utilizes liquid cooling technology to exacerbate the non-uniform problem of battery core internal temperature
Carry out reducing battery pack as far as possible when battery pack cooling the problem of temperature distribution is non-uniform, therefore conventional heat-transfer device is insufficient
To solve the heat management problems of battery pack.
Liquid metal is the low-melting alloy that liquid is presented under a kind of room temperature, has excellent thermally conductive, heat absorption, energy storage,
It is the preferable heat transfer medium of performance, and property is stable, does not react with air and water under room temperature, not volatile, safe nothing
Poison, use are safe.The Chinese utility model patent of Patent No. ZL201510647136.6 discloses a kind of based on liquid metal
Industrial smoke waste-heat recovery device, the component of liquid metal are as follows: gallium 58%, indium 20%, tin 9%, cadmium 5%, neodymium 5%, the liquid gold
Belonging to fusing point is -9 DEG C, and fusing point is lower, is not suitable for the heat transfer of battery core fever, therefore can be contained by adjusting the component of liquid metal
It measures to change the characteristic of industry situation metal.
Summary of the invention
The purpose of this utility model is to provide a kind of high-efficiency heat conduction devices of automobile power cell, can be by battery core monomer
Rapidly and efficiently thermally conductive to cooling position of heat caused by inside, phenomena such as avoiding the existing overheat in battery core bottom, greatly
Reduction battery pack in heat inhomogeneities, prolong the service life, improve battery pack using capacity, service efficiency and heat peace
Full performance.
The utility model is realized in this way:
A kind of high-efficiency heat conduction device of automobile power cell, including several blocks of liquid metal for conducting heat plates and liquid metal for conducting heat
Pad；Liquid metal for conducting heat plate is arranged between adjacent two pieces of battery core monomers, several blocks of liquid metal for conducting heat plates and several pieces of battery cores
Monomer is successively spaced setting, forms battery modules；The bottom of battery pack, several blocks of liquid metals are arranged in liquid metal for conducting heat pad
Heat-conducting plate absorbs the heat of battery core monomer and is transmitted on liquid metal for conducting heat pad.
The outside of the battery pack is equipped with battery pack case, forms battery pack structure, the bottom of the battery pack case
Portion is arranged on liquid metal for conducting heat pad.
Phase-changing energy storage material is poured in the liquid metal for conducting heat pad.
The high-efficiency heat conduction device of the automobile power cell further includes cooling device, the cooling device and liquid gold
Belong to heat conductive pad connection.
The utility model compared with prior art, has the following beneficial effects:
1, the utility model efficiently quickly conducts heat to liquid metal for conducting heat pad by liquid metal for conducting heat plate, electricity
It not will cause hot-spot between core monomer, greatly reduce the risk of battery core thermal runaway.
2, the utility model is by the superelevation energy storage characteristic and flash heat transfer characteristic of liquid metal for conducting heat plate, battery core up and down
The part temperature difference becomes smaller, the very big service life for improving battery core monomer.
3, the utility model is efficiently quickly being inhaled by the high temperature latent heat property of phase-change material in liquid metal for conducting heat pad
After receipts liquid metal for conducting heat plate is conducted through the heat come, the temperature of liquid metal for conducting heat pad will not be overheated, and recycle liquid cooling system,
It realizes heat orderly to conduct, reduces influence of the liquid cooling system to the battery temperature difference, improve cooling effect and battery and use the longevity
Life.
The utility model can avoid rapidly and efficiently thermally conductive to cooling position of heat caused by inside battery core monomer
Phenomena such as existing overheat in battery core bottom, greatly reduces the heat inhomogeneities in battery pack, prolong the service life, improve
Battery pack uses capacity, service efficiency and thermal safety.
Detailed description of the invention
Fig. 1 is the decomposition diagram of the high-efficiency heat conduction device of the utility model automobile power cell；
Fig. 2 is the structural schematic diagram of the battery core monomer of the high-efficiency heat conduction device of the utility model automobile power cell.
In figure, 1 liquid metal for conducting heat plate, 2 battery pack cases, 3 liquid metal for conducting heat pads, 4 battery core monomers, 5 cooling devices.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Refer to attached drawing 1 and attached drawing 2, a kind of high-efficiency heat conduction device of automobile power cell, including several blocks of liquid metals
Heat-conducting plate 1 and liquid metal for conducting heat pad 3；Liquid metal for conducting heat plate 1 is arranged between adjacent two pieces of battery core monomers 4, several blocks of liquid
State metal heat-conducting plate 1 and several pieces of battery core monomers 4 are successively spaced setting, form battery modules；The setting of liquid metal for conducting heat pad 3 exists
The bottom of battery pack, several blocks of liquid metal for conducting heat plates 1 absorb the heat of battery core monomer 4 and are transmitted to liquid metal for conducting heat pad 3
On.
The outside of the battery pack is equipped with battery pack case 2, forms battery pack structure, the battery pack case 2
Bottom is arranged on liquid metal for conducting heat pad 3.
Phase-changing energy storage material is equipped in the liquid metal for conducting heat pad 3, the concentration of phase-changing energy storage material is 2-5%, is poured
In liquid metal, phase-changing energy storage material is a kind of composite material with high heat conductance, high latent heat of phase change, such as phase-change accumulation energy
Material may include skeleton, phase change material and enhanced thermal conduction agent, and the mass ratio of skeleton and phase change material is to influence material flexibility, latent
The principal element of heat and packaging effect, enhanced thermal conduction agent mainly influence the overall thermal conductivity of material, and not only heat absorption capacity is strong, together
When rate of heat transfer it is fast, can quickly reduce the temperature of target heat source in a very short period of time.Utilize liquid metal phase change energy storage characteristic
Liquid metal for conducting heat plate 1 is conducted through the battery core calorific value come to be absorbed into liquid metal for conducting heat pad 3, -50-300 may be implemented
Arbitrary temp customization in DEG C section, maintains power battery pack to work within the temperature range of 20-40 DEG C for a long time.
Preferably, the mass percent of enhanced thermal conduction agent is generally between 3%-5%, the quality of skeleton and phase change material
Ratio is about 1:4；Preferably, the material of skeleton can be polyvinyl alcohol (PVA)；Phase change material is organic material, such as with poly- second
It further include the ingredients such as paraffin, resin acid class based on glycol (PEG)；Enhanced thermal conduction agent can be ethylene glycol (EG) etc..
The high-efficiency heat conduction device of the automobile power cell further includes cooling device 5, the cooling device 5 and liquid
Metal heat-conducting pad 3 connects, and heat is orderly dispersed through apparatus for supercooling 5.
Preferably, integrated water cold plate or other cooling structures can be used in the cooling device 5.
Liquid metal for conducting heat plate 1, which can be used, to be fabricated to the liquid metal of ultra-thin solid sheet and is made, traditional for substituting
Double-face gummed paper, component are as follows: gallium 70%-80%, indium 10%-15%, tin 1%-2%, cadmium 1%-2%, neodymium 1%-2% make its fusing point 100-
200 DEG C, in the state that thermal runaway does not occur for battery pack, liquid metal for conducting heat plate 1 will not melt；Liquid metal for conducting heat plate
1 thermal conductivity is 60-80W/ (m.K), and thermal conductivity is 5-10 times of traditional silicon oil based material, and physico-chemical property is stablized, high temperature resistant
Ability is up to 500 DEG C；The conductivity of liquid metal for conducting heat plate 1 is then as far as possible down to the degree of insulation, to prevent the leakage of battery core monomer 4
Electricity.For liquid metal for conducting heat plate 1 in installation process without smearing, it is convenient to operate.
Liquid metal for conducting heat pad 3 exists in the form of liquid metal particle or drop and is wrapped in glue by organic method
In capsule, or liquid metal particle or drop are dispersed in formation mixed solution in water and are placed in PE box body or metal case
It is interior.Preferably, the particle size distribution range of liquid metal particle or drop be 50-100um, liquid metal for conducting heat pad 3 with a thickness of
1-2mm。
In use, liquid metal for conducting heat plate 1 is placed between battery core monomer 4, firstly, the superelevation using liquid metal is absorbed heat
Performance can almost accomplish that instantaneously heat caused by battery core monomer 4 is drawn into liquid metal；Secondly, utilizing liquid gold
The heating conduction of the superelevation of category transfers heat to liquid metal for conducting heat pad 3 in time；Finally, utilizing liquid metal for conducting heat pad 3
Heat is stored in liquid metal for conducting heat pad 3 by energy storage property, is recycled cooling device 5 orderly to disperse heat, be ensure that electricity
Inside core monomer 4, the positions such as battery pack bottom will not because of heat dissipation during cause artificial temperature difference, reduce the temperature difference.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the protection scope of the utility model,
Therefore, any modification, equivalent substitution, improvement and etc. made within the spirit and principle of the present invention, should be included in
Within the protection scope of the utility model.
Claims (4)
1. the high-efficiency heat conduction device of a kind of automobile power cell, it is characterized in that: including several pieces of liquid metal for conducting heat plates (1) and liquid
State metal heat-conducting pad (3)；Liquid metal for conducting heat plate (1) is arranged between adjacent two pieces of battery core monomers (4), several blocks of liquid metals
Heat-conducting plate (1) and several pieces of battery core monomers (4) are successively spaced setting, form battery modules；Liquid metal for conducting heat pad (3) setting exists
The bottom of battery pack, several pieces of liquid metal for conducting heat plates (1) absorb the heat of battery core monomer (4) and are transmitted to liquid metal for conducting heat
It pads on (3).
2. the high-efficiency heat conduction device of automobile power cell according to claim 1, it is characterized in that: the battery pack is outer
Portion is equipped with battery pack case (2), forms battery pack structure, and the bottom setting of the battery pack case (2) is led in liquid metal
In heat pad (3).
3. the high-efficiency heat conduction device of automobile power cell according to claim 1, it is characterized in that: the liquid metal is led
Phase-changing energy storage material is poured in heat pad (3).
4. the high-efficiency heat conduction device of automobile power cell according to claim 1, it is characterized in that: the automobile power electricity
The high-efficiency heat conduction device in pond further includes cooling device (5), and the cooling device (5) is connect with liquid metal for conducting heat pad (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820866893.1U CN208401003U (en) | 2018-06-06 | 2018-06-06 | The high-efficiency heat conduction device of automobile power cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820866893.1U CN208401003U (en) | 2018-06-06 | 2018-06-06 | The high-efficiency heat conduction device of automobile power cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208401003U true CN208401003U (en) | 2019-01-18 |
Family
ID=65135442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820866893.1U Active CN208401003U (en) | 2018-06-06 | 2018-06-06 | The high-efficiency heat conduction device of automobile power cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208401003U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557396A (en) * | 2020-12-23 | 2021-03-26 | 东软睿驰汽车技术（沈阳）有限公司 | Detection method and related equipment |
| CN113206313A (en) * | 2021-03-24 | 2021-08-03 | 浙江合众新能源汽车有限公司 | Battery structure for inhibiting thermal runaway spreading of battery pack |
| CN113329587A (en) * | 2020-02-28 | 2021-08-31 | 三菱电机株式会社 | Power conversion device |
| CN115548507A (en) * | 2022-08-29 | 2022-12-30 | 西安交通大学 | Direct cooling and phase change cooling coupled battery thermal management system and manufacturing method |
-
2018
- 2018-06-06 CN CN201820866893.1U patent/CN208401003U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329587A (en) * | 2020-02-28 | 2021-08-31 | 三菱电机株式会社 | Power conversion device |
| CN112557396A (en) * | 2020-12-23 | 2021-03-26 | 东软睿驰汽车技术（沈阳）有限公司 | Detection method and related equipment |
| CN113206313A (en) * | 2021-03-24 | 2021-08-03 | 浙江合众新能源汽车有限公司 | Battery structure for inhibiting thermal runaway spreading of battery pack |
| CN115548507A (en) * | 2022-08-29 | 2022-12-30 | 西安交通大学 | Direct cooling and phase change cooling coupled battery thermal management system and manufacturing method |
| CN115548507B (en) * | 2022-08-29 | 2023-11-14 | 西安交通大学 | Direct cooling and phase change cooling coupled battery thermal management system and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208401003U (en) | The high-efficiency heat conduction device of automobile power cell | |
| Chen et al. | Effects of different phase change material thermal management strategies on the cooling performance of the power lithium ion batteries: A review | |
| Luo et al. | Battery thermal management systems (BTMs) based on phase change material (PCM): A comprehensive review | |
| Wang et al. | High thermal conductive paraffin/calcium carbonate phase change microcapsules based composites with different carbon network | |
| CN202758989U (en) | Battery system with multi-medium cooling source | |
| CN204230384U (en) | A kind of dynamic lithium battery with heat management system | |
| CN106033827A (en) | Power battery thermal management system with functions of efficient heat dissipation and efficient heating | |
| JP5395765B2 (en) | Batteries provided with coolant, and assembled batteries provided with coolant | |
| WO2013003989A1 (en) | Temperature control system with thermal tubes for vehicle power battery box | |
| WO2018103306A1 (en) | Thermal management module for use in square battery, manufacturing method for module, and applications thereof | |
| CN205039216U (en) | Thermal management system of cuboid group battery | |
| Lin et al. | Research progress of phase change storage material on power battery thermal management | |
| CN204271214U (en) | There is the dynamic lithium battery group of intelligent temperature regulatory function | |
| CN110071348A (en) | Based on the cooling power battery thermal management system of composite phase-change material and its application | |
| CN108550951A (en) | A kind of high-power lithium ion battery heat management system | |
| CN109841927A (en) | Electric automobile power battery heat management device suitable for extremely frigid zones | |
| Zare et al. | Solid-liquid phase change materials for the battery thermal management systems in electric vehicles and hybrid electric vehicles–A systematic review | |
| Liu et al. | Recent developments of thermal management strategies for lithium‐ion batteries: a state‐of‐the‐art review | |
| CN203351712U (en) | Power battery thermal management system based on sintering heat pipes | |
| CN108808160A (en) | High intensity heat transfer structure for cooling down power battery | |
| CN107579306A (en) | A kind of battery module cooled down based on air and phase-change material | |
| CN203398226U (en) | Battery with efficient heat dissipation function | |
| Wang et al. | Shape-stabilized phase change material with internal coolant channel coupled with phase change emulsion for power battery thermal management | |
| CN104247144A (en) | Lithium battery electric core module and design method of battery package cooling system | |
| CN208835235U (en) | A kind of battery modules and battery modules phase-change accumulation energy partition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |